Paint Quantity Calculator
Estimate the litres of finish paint needed for a rectangular room after doors and windows are removed.
Open toolHome decorating calculator library
All Home Decor Tools
Find the precise calculator, converter, estimator, or planner for your next room project.
Home project calculator libraryorganized by the decision you need to make
Paint Cost Calculator
Forecast paint spend from surface area, coverage, coats, pack size, and local price.
Open toolCeiling Paint Calculator
Calculate ceiling paint for a rectangular room with a practical waste margin.
Open toolRoom Area Calculator
Calculate usable floor area for a rectangular room in square metres and square feet.
Open toolWall Area Calculator
Calculate the combined wall surface of a rectangular room minus doors and windows.
Open toolRoom Layout Planner
Test whether a proposed furniture group fits while preserving target circulation.
Open toolTile Quantity Calculator
Estimate whole tiles from surface area, tile face size, and a chosen waste allowance; check joints and cuts on a layout.
Open toolFlooring Material Calculator
Estimate board or plank packs for a floor using net area and cutting allowance.
Open toolCarpet Quantity Calculator
Estimate carpet area and linear roll length with practical fitting waste.
Open toolTile Grout Calculator
Estimate dry grout from tiled area, tile dimensions, joint width, depth, and material density.
Open toolWallpaper Roll Calculator
Calculate wallpaper rolls from wall perimeter, height, roll size, pattern repeat, and full-height exclusions.
Open toolWall Panel Calculator
Determine whole decorative panels needed to cover a wall with cutting allowance.
Open toolGallery Wall Planner
Plan a rectangular gallery grid and calculate its finished footprint.
Open toolCurtain Fabric Calculator
Estimate fabric length for paired curtains using fullness, usable fabric width, drops, hems, and repeat.
Open toolCurtain Rod Length Calculator
Size a curtain rod beyond the window so curtains can stack clear of the glass.
Open toolBlind Size Calculator
Convert window measurements into an inside- or outside-mount blind order size.
Open toolWindow Treatment Cost Calculator
Compare the complete cost of treating multiple same-size windows.
Open toolSofa Space Calculator
Check a sofa’s wall fit and the circulation left in front of it.
Open toolDining Table Size Calculator
Recommend table capacity and test the space needed for chairs and movement.
Open toolBed Size & Room Space Calculator
Test a bed footprint with practical walking clearances on three sides.
Open toolRug Size Calculator
Recommend rug dimensions from furniture-group size and edge coverage preference.
Open toolRoom Lighting Calculator
Estimate total lumens and LED wattage from room area, task level, and utilization.
Open toolLight Fixture Size Calculator
Estimate a proportional decorative fixture diameter for a rectangular room.
Open toolRecessed Light Calculator
Estimate recessed-light count and a separate spacing guideline; this does not generate a verified fixture grid.
Open toolKitchen Lighting Calculator
Estimate ambient plus worktop lighting for a kitchen.
Open toolBathroom Lighting Calculator
Estimate general and vanity lighting with a moisture-aware fixture reminder.
Open toolHome Decor Budget Calculator
Create an overall furnishing and decor budget with tax and contingency.
Open toolMaterial Cost Calculator
Price any measured material using order quantity, unit rate, waste, delivery, and tax.
Open toolProject Budget Split Calculator
Split a fixed project budget across materials, labor, design, and contingency while checking percentages.
Open toolArea Unit Converter
Convert an area among square metres, square feet, square yards, and acres.
Open toolColor Scheme Generator
Generate a color scheme using a hue family and a formal harmony method.
Open toolShopping Quantity Planner
Convert a target area or count into whole purchasable packs with spare stock.
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